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Engine-Codes – Generic – U114D

U114D Code - Lost Communication With Hands Free Liftgate Module

Quick Answer

The diagnostic code U114D indicates that the Body Control Module (BCM) has lost communication with the Hands Free Release Module (HFRM). Common causes include Open or shorted Fused B(+) circuit to the Hands Free Release Module, Open ground circuit to the Hands Free Release Module, Open LIN bus communication circuit. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U114D indicates Lost Communication With Hands Free Liftgate Module.
Common causes
Common causes include Open or shorted Fused B(+) circuit to the Hands Free Release Module, Open ground circuit to the Hands Free Release Module, Open LIN bus communication circuit.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Jun 03, 2026
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Code U114D Description

The diagnostic code U114D indicates that the Body Control Module (BCM) has lost communication with the Hands Free Release Module (HFRM). This communication occurs over a Local Interconnect Network (LIN) bus, which is a low-speed network designed to connect various electronic components in the vehicle. When the BCM fails to receive messages from the HFRM for more than 7.5 seconds while the ignition is ON and the system voltage is stable, this code is triggered. The hands-free liftgate function, which allows for the opening and closing of the liftgate without the need for physical contact, may become inoperative as a result.

OBDII Code U114D - Lost Communication With Hands Free Liftgate Module
U114D Code - Lost Communication With Hands Free Liftgate Module

Common Causes of U114D

  1. Open or shorted Fused B(+) circuit to the Hands Free Release Module
  2. Open ground circuit to the Hands Free Release Module
  3. Open LIN bus communication circuit
  4. Poor electrical connection at the Hands Free Release Module
  5. Corroded, loose, or damaged connector terminals
  6. Water intrusion in connectors or wiring
  7. Faulty Hands Free Release Module (HFRM)
  8. Faulty Body Control Module (BCM)

Symptoms of U114D

  1. Engine Light ON (or Service Engine Soon Warning Light)
  2. Inoperative hands-free liftgate function
  3. Delayed or erratic response from the liftgate when using the manual controls
  4. Other electrical components may exhibit intermittent failures
  5. Possible warning messages displayed on the vehicle's dashboard

How to Fix U114D

  1. Perform a visual inspection of the wiring and connectors associated with the Hands Free Release Module and Body Control Module for signs of damage or corrosion.
  2. Check the Fused B(+) circuit and ground circuit for continuity and ensure they are not open or shorted.
  3. Test the LIN bus communication circuit for integrity; use a scan tool to monitor communication between the BCM and HFRM.
  4. If necessary, replace any damaged connectors or wiring and ensure all connections are secure and free of corrosion.
  5. If the issue persists, consider replacing the Hands Free Release Module or the Body Control Module, depending on which component is determined to be faulty.

Cost to Fix U114D

The cost to diagnose and repair the U114D code can vary significantly based on the specific issues found and the labor rates in your area. Typical parts and labor costs may range from $150 to $600. Labor rates generally fall between $80 to $150 per hour, with dealerships often charging more than independent shops. The total cost will depend on the extent of the repairs needed, including any parts that may need replacement, such as the Hands Free Release Module or wiring harnesses.

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Code U114D Information for Specific Makes

About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

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